Container structure



J. S. STOKES.

CONTAINER STRUCTURE.

APPLICATION FILED APR. 3. 1918.

1 ,425,7 1 4, Patented Aug. 15; 1922.

sornvs'roeD-ELL sroxns, or 'MOORESTOWN, NEW JERSEY, Assfenonrosroxns a. 'SIVIITII COMPANY, or smut runners.rHILADELPHIA, PENNSYLVANIA, Acon- IBORATION OF PENNSYLVANIA.

CONTAINER sriancmunn.

To all whom it may conaerm. a Be it known that JOHN S'roennLL STOKES,

'acitizen of the United States, residing at- Moorestown, in the county of Burlington and State of New Jersey, has invented new,

and "useful Improvements in Container Structures, of which the following is a specification. a v

This invention relates to container structures which may be in the form of com' plete containers or of shells, the latter being generally formed with the top (or bottom) permanently open, the container, in

such case, being produced by telescoping two,

mating shells.

The present invention is designed more particularly for the production of container structures from paper stock somewhat pli-,

able in character-a stock of materially lighter weight than is generally employed in container production.

Obviously container structures for com-- -mercial use should be of sufiicient' stifi'ness designed more particularly to produce the desirechshape. "Wheret however, the material is more or less pllable, the resistance must be provided in other ways, as, for

instance, by the manner of folding or' the manner in which theparts are secured in their shaped positions. 7

- In forming shells, this result is generally hadby a composite formationa stifi' board body and; a flexible wrapper-requiring the use oftwo blanks and more or less separate folding operations. In containerstructures,

a single blank has been employed as for instance is the case withcollapsible containers-but these are moreor less complicated in structure and are not. produced in set-up formation, setting upbeing by hand labor,

machines'for the production ;,t us involving.

excepting in few nstances where the character of the containerlblank is complicated and requires the use of complicated special large investments in machines-usable only i for the speclfic purpose.

Obviously, the successful structure I for 3 I SpecificationbfLetters Patent. Pat nt d 1 922, A lication filed April 3; 1918. Serial No. 226,429. I i

commercial use should be capableof produc 1 t1on under large capacity conditionsand at minimum cost of production, and hence the problems presented in. producing structures from pliable material not only. involve the f a use of specialfo-rmationstomeet thecondir' f tionsof service of the container :or shell, x

but-also the problem of providing the for-' mations in such manner as to permit rapidproduction bystandar'd machines, since the commercial requirements of containers of this general type does not generallywarrant the investment required for machines 5 adapted for pose.

useonly for the singlepun 7 The present invention is. designed more particularly to meet these problemsby. the. use of a general form of blank or blanks which areyfoldable and adhesively secured in such manner as to give the necessary and}: desired stitfnessiy when' using stock having more or less pliable characteristics, thus en w abling the container structure to be formed from a single. blankto producefa light: weight structure, and at the s'ame time produce a blank formation ,capable ofbeing manipulated into container, fOIma,tl011..- OIl1 standardf machines adapted. for production of other types of. containers yoreshells with; little orlno change in the machine, structure, j is and which: are adaptedzt'to produce contain-,

ers or shells differing in size, etc. 7

To these and other ends, therefore, the

nature of which will be readily understood as the invention is hereinafter disclosed; said invention consists in the improved construction and combination ofpart's hereinafter. .fully described, illustratedin the accom an in drawin s and more articularl? pointed out inthe" appended claim; I

In the accompanying drawings, fin'which similar reference characters indicate similar parts 1n each of the views;

Fig. '1 is a perspective g n a rmof blank adaptedtobeformed,

in closed position.

Fig. 4 is a detail sectional view taken on line i i of Fig. 2.

F 5 is a perspective view of a blank adapted for formation of a shell.

in stiffening the structure.

Fig. 6 is a perspective view of a shell formed from the blank of Fig. 5.

Fig. 7 is a detail sectional view taken on line 7-7 of Fig.6.

As will be understood the sizes of parts and thickness of the paper stock, as shown in the drawings are simply illustrative.

In the present invention'the stiffness of the container or shell is provided by the particular manner in which the various portions of the blank are folded and adhesively connected and reinforced. This is provided in a simple and eflicient wayreadily adapted for production on standard machines and serves to so stiffen the container structure as to materially reduce the necessity of relying on the'paper stock for material aid As a result, the structure can be producedfrom a single blank and, in addition, this blank can be formed from paper stock materially lighter in weight as compared with prior structures, a stock which may have pliability characteristics, and which may, if desired, preponderate in the characteristic of toughness rather than stiffness.

Figs. 1 to 3 indicate more particularly the arrangement where the product is in the form of a one-piece container, Figs. 1- and- 7 indicating sections common in both forms ofcontainer structures.

The container of Figs. 2 and 3 is formed from a blank shown more particularly in Fig. 1, in which 10, 11 and 12indicate, respectively, the front, bottom and rear wall sections,'13 indicating the closure section. As shown, section-1O has narrow integral flaps 10 extending from its ends and a flap 10 extending from its outer 'or side edge; section 11 has end wings 11 the main portions of which are of the same area as the ends of the completed box or carton, and

these end wings have on their outer edges narrow flaps 11 Section 12 has end flaps 12 similar to flaps 10 'The flaps 10 and 12 provide corner reinforcements and the flaps 10 and 11 provide edge or marginal reinforcements in the completed box or carton, as later more particularly described.

As will be'seen, marginal flaps 10 and 11 are each given an adhesive coating, and in addition, each wing'll is provided with zones of adhesive 11 and 11 extending along its opposite side edges and a zone 11- extending along that portion adjacent to flap 11 may also be provided.

The blank may be scored on the lines indicated or the folding may be had without previous scoring, the folding machine being designed to produce the proper folding.

Folding of the blank is by raising sections 10 and 12 perpendicular to section 11-section 13 moving with section 12. This places flaps 1O" 'and 12 facingea'ch'other. These flaps '10 and 12 are then turned inward into alinement with, each other, after which wings 11 are raised, adhesive zones 11 and 11 being brought into contact withthe outer faces offlaps 10 and 12 respectively, and

adhesively applied thereto. Flaps 10 and 11 are then infolded to reinforce'the upper .edges of the container body thus formed.

Flaps 11 preferably overlie wings 10 and 12 thus locating the latter between Wings, 11 and flaps 11 and strengthening the end construction.

As will beseen, the "vertically-extending right-angle bend therebetween, serving to brace the bottom, while the infolding of flaps 11 forms a folded reinforce at the top of the ends. v

Stiffness in the direction of length of the, body is had through infolding flap 10 atthe front and the integral connection of' sections 12 and 13 together with the rightangle bend therebetweein tilfening at thesepoints willoifer suflicient resistance against collapse to permit the use of paper stock of lighter weight and which may have characteristics of pliabi lity and toughness.

Section 13 is provided with flaps 13' and 13 these being designed to extend into the container when section 13 is moved to closj ingposition.

In some cases in producing the shell formation, as shown in Fig. 5, section 13 and its flaps are omitted, a'flap l2 being utilized, this flap being adhesively coated and serving a purpose similar to flap 10*, thus providing an inturned reinforcing element along the top of each of the four sides of the open-top container structure or shell.

As will be understood, the particular man ner in which the end formations are provided, and the presence of the reinforcing weight, may be employed, thus not only decreasing cost of material, but decreasing the Weight of the package accordingly. And since the structure is one which can be readily produced on standard machines, the cost of production is also materially reduced over the general cost of manufacture of container structures of usual character. This decrease in cost of manufacture not only permits of expansion of the use of such structures in the present fields, but makes possible the use of 'pre-formed container structures heretofore limited to ordinary wrapping in fields service, the small increased cost being more than overcome by the superiority in the form of the package produce As will be understood, the particular sizes of parts shown in the drawings is more or less illustrative. The particular structure herein disclosed is capable of being manufactured in comparatively large sizes, the

structural formation being such as to pen accompanying claim.

, several waysin which the invention may be carried out, itxwill bereadily understood that changes and modifications therein may be found desirable or necessary in meeting the exigencies of use, and ,I desireito. be understood as'reserving the right to make any and all such changes or modifications as may be found desirable or essential in so far as the same may fall within-the spirit and scope of the invention as expressed in the W hat I claim is A. container or box part consisting of a single sheet of'relatively thin and flexible paper having in itself insufficient stability for the designated service, said sheetbein'g cut. into a blank having a bottom section and integral front and rear wall sectionsand .i

end wing sections, narrow, margin-reinforcmg flaps extending from free edges of the end wing and wall sections and narrow corner-reinforcing flaps extending fromother free edges of said sections, the blank being folded into box form with said cornerreinforcing flaps adhesively secured to marginal portlons ofadj ace'nt sections and with said margin-reinforcing flaps turned down I, .i and adhesively secured to marginal portions 7 of the respective sections providing integral corner and margin-reinforcements. imparts ing sufficient stability for container use.

In testimony whereof I have hereuntoset my hand.

JOHN STOGDELL STOKES. 

